<template>
  <PageWrapper title="文件下载示例">
    <a-alert message="根据后台接口文件流下载" />
    <a-button type="primary" class="my-4" @click="handleDownByData">
      文件流下载
    </a-button>

    <a-alert message="根据文件地址下载文件" />
    <a-button type="primary" class="my-4" @click="handleDownloadByUrl">
      文件地址下载
    </a-button>

    <a-alert message="base64流下载" />
    <a-button type="primary" class="my-4" @click="handleDownloadByBase64">
      base64流下载
    </a-button>

    <a-alert message="图片Url下载,如果有跨域问题，需要处理图片跨域" />
    <a-button type="primary" class="my-4" @click="handleDownloadByOnlineUrl">
      图片Url下载
    </a-button>
  </PageWrapper>
</template>
<script lang="ts">
import { defineComponent } from 'vue'
import {
  downloadByUrl,
  downloadByData,
  downloadByBase64,
  downloadByOnlineUrl,
} from '@pkg/utils'
import imgBase64 from './imgBase64'
import { PageWrapper } from '@/components/page'
import { Alert } from 'ant-design-vue'

export default defineComponent({
  components: { PageWrapper, [Alert.name]: Alert },
  setup() {
    function handleDownByData() {
      downloadByData('text content', 'testName.txt')
    }
    function handleDownloadByUrl() {
      downloadByUrl({
        url: 'https://codeload.github.com/anncwb/vue-vben-admin-doc/zip/master',
        target: '_self',
      })

      downloadByUrl({
        url: 'https://vebn.oss-cn-beijing.aliyuncs.com/vben/logo.png',
        target: '_self',
      })
    }

    function handleDownloadByBase64() {
      downloadByBase64(imgBase64, 'logo.png')
    }

    function handleDownloadByOnlineUrl() {
      downloadByOnlineUrl(
        'https://p3-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/5944817f47b8408e9f1442ece49d68ca~tplv-k3u1fbpfcp-watermark.image',
        'logo.png',
      )
    }
    return {
      handleDownloadByUrl,
      handleDownByData,
      handleDownloadByBase64,
      handleDownloadByOnlineUrl,
    }
  },
})
</script>
